<template>
  <h1>App组件</h1>
  <Child v-model="num" v-model:num2="num2"></Child>
</template>

<script>
import Child from "./Child.vue";
export default {
  name: "App",
  data() {
    return {
      num: 0,
      num2: 2,
    };
  },
  components: {
    Child,
  },
};
</script>

<style>
</style>